The launch gantry is rolled back to reveal the United Launch Alliance Delta II rocket at Vandenberg Air Force Base, Calif.… https://www.rawpixel.com/image/439958/free-photo-image-spacecraft-nasa-distributionFree Image from public domain licenseA United Launch Alliance Delta II rocket launches with the Orbiting Carbon Observatory-2 satellite onboard from Space Launch… https://www.rawpixel.com/image/439946/free-photo-image-smoke-nasa-americaFree Image from public domain license